I lite the grill

My wife is looking at me now with this evil smile, wandering what my next move will be. I say to my mother in law "yes maam i'll help you lite it. Do you mind going in the house and getting my grill lighter out of the kitchen?" She says "sure i'll be right back." And as soon as she walks in the house, i get my naked behind out of the pool and grab my towel to cover up with. I forget that its to small, so i panic a little bit but then i think i'll just use my wifes towel for now. As soon as i come up with this idea i hear the footsteps of my mother in law returning. I quickly drop my little towel, revealing everything, and run for my wifes towel. I get it on just as the door opens! That was close! I think to myself. I proceed to lite the grill. After the grill is good and hot, i throw the burgers on and start grilling. When i go to sit the bowl down that had the meat in it, i drop it and it spills the extra marinade all over my little towel that is laying on the deck. My mother in law says "oops! I'll clean it up" she then proceeds to wipe up all of the juice with my only clothing and then takes it in to be washed. Now i know im screwed. She returns to the deck to hang out with us. Im having to face the grill because the thought of my upcoming exposure has made me penis rock hard. My wife notices this while shes still swimming and starts to make comments like "make sure mine is done, i like my meat hard". Im starting to turn red at this point. The time finally comes. My mother in law goes inside to get the plates and drinks and while shes inside my wife says to me,"im about to get you butt naked and there's nothing you can do about it" and she laughs hysterically at my predicament. My mother in law returns with the plates and my wife starts to get out of the pool. I take the burgers off the grill and start to head over to the table where my mother in law is sitting when it happens. My wife comes up behind me and snatches the towel right off of me! This causes my penis to violently spring free about three feet away from my mother in laws face. Im horrified. She sits staring at my bare penis and balls and has a shocked look on her face for a second then she bursts out laughing! She gives me a wolf whistle and says "nice penis naked boy!" I sit the hamburgers down and try to cover my hard dick with my hands. My wife also wolf whistles and whips me on the bare ass with her towel. This causes me to jump in pain and let go of my penis, leaving it bobbing around in my mother in laws face. I turn around to get the towel from my wife which expose my bare butt to my mother in law. Its pale white in contrast to the rest of my body, but now it has a bright red stripe on it from the towel crack. My mother in law says "nice ass too, especially with that red stripe on it!" My wife has thrown the towel on top of the house so now im stuck butt ass naked.